Open Access"FABRICATION OF AL7075-SiC-GRAPHITE HYBRID COMPOSITE BY STIR CASTING"
Author(s) -
K.V.S. Phani,
Gudla Jayachandra
Publication year - 2019
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2019.v04i01.023
Subject(s) - fabrication , graphite , composite number , materials science , casting , composite material , metallurgy , medicine , alternative medicine , pathology
Aluminum metal matrix composites are having light weight, high strength, good corrosive resistance and toughness. it is used in several applications in aerospace and automotive industries. The hybrid metal matrix composites are consisting of at least 3 constituentsAL7075 is used where high strength is critical and good corrosive resistance. Very high strength the reinforcement particles are SiC and Graphite have good mechanical welding properties. In this work AL7075/SiC/Graphite hybrid composites were fabricated with different wt. %( 0.5%,1%,1.5%,2%) of SiC and constant graphite with 1 wt.% by using stir casting process. We perform different tests (tensile, hardness, toughness, and microstructure)on this metal matrix composite. Impact strength charpy and Izod of the composite materials are increased with addition of 2 wt. % SiC, which is 42% and 66% respectively compare to base alloy. The tensile strength is increased up to 41% compare to base alloys The hardness strength are increased to composites of 1.5 wt.% Sic and 1 wt% graphite. The hardness is increased up to 11% compare to base alloy in the composite of 0.5% of SiC. Keywords— Al 7075, SiC, Graphite, Metal matrix